Journal
BIOSENSORS & BIOELECTRONICS
Volume 58, Issue -, Pages 237-241Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2014.02.081
Keywords
Polypyrrole; Carbon nanotubes; Molecularly imprinted polymers; Dopamine; Electrochemical sensor
Categories
Funding
- National Natural Science Foundation of China [51272100, 51273073]
- Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
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A novel electrochemical sensor using the molecularly imprinted (MIP) oxygen-containing polypyrrole (PPy) decorated carbon nanotubes (CNTs) composite was proposed for in vivo detection of dopamine (DA). The prepared sensor exhibits a remarkable sensitivity of (16.18 mu A/mu M) with a linear range of 5.0 x 10(-11)-5.0 x 10(-6) M and limit of detection as low as 1.0 x 10(-11) M in the detection of DA, which might be due to the plenty cavities for binding DA through pi-pi stacking between aromatic rings and hydrogen bonds between amino groups of DA and oxygen-containing groups of the novel PPy. (C) 2014 Elsevier B.V. All rights reserved.
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